Low-molecular weight siliceous acrylic resin for photosensitive silver paste and preparation method thereof
A low-molecular-weight, silico-acrylic technology, used in optomechanical equipment, optics, photolithography on patterned surfaces, etc., and can solve problems such as line adhesion.
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Embodiment 1
[0033] The photosensitive silver paste described in this embodiment is prepared by the following method with low molecular weight silicon-containing acrylic resin:
[0034] Under a nitrogen atmosphere, 100g of dipropylene glycol methyl ether and 0.005g of benzoyl peroxide were packed into a 500mL four-necked flask with mechanical stirring, a thermometer and a reflux condenser, and placed in an oil bath at 60°C (such as figure 1 shown). 99.9 g of methyl methacrylate, 0.1 g of methacrylic acid, 0.005 g of acryloxypropyltrimethoxysilane, 0.01 g of initiator and 0.01 g of chain transfer agent were mixed and transferred to a constant pressure dropping funnel. When the temperature in the reaction flask reached 60°C, the constant pressure dropping funnel was opened, and the mixture was added dropwise and reacted for 1 h. Raise the temperature to 70°C for 1 hour, cool to room temperature and store in a PP plastic bottle; the photosensitive silver paste obtained in this example has a ...
Embodiment 2
[0036] The photosensitive silver paste described in this embodiment is prepared by the following method with low molecular weight silicon-containing acrylic resin:
[0037] Under a nitrogen atmosphere, 100g of n-butanol and 0.05g of benzoyl peroxide were packed into a 500mL four-neck flask with mechanical stirring, a thermometer and a reflux condenser, and placed in an oil bath at 70°C (such as figure 1 shown). 80g of methyl methacrylate, 10g of acrylic acid, 10g of butyl acrylate, 0.05g of acryloxypropyltriethoxysilane, 0.05g of initiator and 0.05g of chain transfer agent were mixed and transferred to a constant pressure dropping funnel. When the temperature in the reaction flask reached 70°C, the constant pressure dropping funnel was opened, and the mixture was added dropwise and reacted for 2 hours. Raise the temperature to 80°C for 2 hours, cool to room temperature and transfer to PP plastic bottle for storage. The molecular weight of the low molecular weight silicon-con...
Embodiment 3
[0039] The photosensitive silver paste described in this embodiment is prepared by the following method with low molecular weight silicon-containing acrylic resin:
[0040] Under a nitrogen atmosphere, 233g terpineol and 0.1g benzoyl peroxide were packed into a 500mL four-necked flask with mechanical stirring, a thermometer and a reflux condenser, and placed in an oil bath at 80°C (such as figure 1 shown). 70g methyl methacrylate, 50g maleic anhydride, 30g isobutyl methacrylate, 10g hydroxyethyl methacrylate, 0.1g methacryloxypropylmethyldimethoxysilane, 0.1g initiator Agent and 0.1g chain transfer agent were mixed and transferred to a constant pressure dropping funnel. When the temperature in the reaction flask reached 80°C, the constant pressure dropping funnel was opened, and the mixture was added dropwise and reacted for 3 hours. Raise the temperature to 90°C for 3 hours, cool to room temperature and transfer to PP plastic bottle for storage. The molecular weight of the...
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